In-situ pelletization of campus biomass residues: Case study for Akdeniz University

Hasan Yılmaz, Murad Çanakcı, Mehmet Topakcı, Davut Karayel, Mete Yiğit and Derya Ortaçeşme

Renewable Energy, 2023, vol. 212, issue C, 972-983

Abstract: The fact that regular residues from the university campus green areas do not require a supply organization ensures the applicability of the in-situ pelletizing concept. In this study, woody, herbaceous and mixed biomass residues that occur at regular intervals from campus green areas were pelleted. Pelletizing behaviors and energy consumptions were examined. In addition, physical indicators of pellets and energy equivalents in bulk form were compared. The energy consumption trends were directly proportional to the geometric mean diameter of the particles originating from woody/herbaceous structure. Herbaceous biomass showed easy flow characteristics and stable pelletizing process was ensured, while woody biomass with coarse and hard particles caused the pelletizing unit motor to be overloaded at short intervals. The highest specific energy consumption in pelletizing in woody residues was calculated as 206 kWh t−1, and lowest in herbaceous residues as 71 kWh t−1. Significant negative features of herbaceous pellets were low bulk density (616 kg m−3), high moisture content (10.64%), low net energy density (9.7 GJ m−3) and low fuel value index (65.94). In contrast, woody pellets have high storage efficiency (663–722 kg m−3), low moisture content (3–4%), high net energy density (12.3–13.2 GJ m−3) and high fuel value index (651–922).

Keywords: Woody; Herbaceous; Fuel value index; Net energy density; Zero waste (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148123007309
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:212:y:2023:i:c:p:972-983

DOI: 10.1016/j.renene.2023.05.097

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().